CN104868979A - Data Transmission Method, Device And System - Google Patents
Data Transmission Method, Device And System Download PDFInfo
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- CN104868979A CN104868979A CN201410849224.XA CN201410849224A CN104868979A CN 104868979 A CN104868979 A CN 104868979A CN 201410849224 A CN201410849224 A CN 201410849224A CN 104868979 A CN104868979 A CN 104868979A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L1/1816—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of the same, encoded, message
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1893—Physical mapping arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
Abstract
A data transmission method of a device comprises the following steps: transmitting a data to another device; receiving a feedback information from the another device; and when the feedback information indicates a transmission error of the device occurs, determining whether to perform retransmission according to the feedback information.
Description
Technical field
The present invention relates to a kind of method of transfer of data, device and system thereof.
Background technology
Along with the evolution of machine type communication (machine type communication), many MTC device with small amount of data transmission are used in different occasions.
In Long Term Evolution (Long Term Evolution), before transfer of data, ustomer premises access equipment (userequipment) need perform the random access procedure of one or four steps.Such random access procedure, can cause higher transmission delay in the application of machine type communication.Therefore we propose competitive mode nonopiate (contention-based non-orthogonal) transmission method to reduce delay phenomenon.The method allows device directly to transmit data in the resource of random selecting must through random access procedure.But, and when number of customer premises devices is many, transfer of data may cause frequent impact and cause systematic function to reduce, what is more, the data of re-transmission may be collided or the data collision new with other mutually.
Summary of the invention
The present invention relates to a kind of method of transfer of data, device and system thereof.
Implement according to one the data transmission method that example provides a kind of device, comprise transmission data to another device; A feedback information is received from another device described; And when described feedback information indicates the transmission of described device to make a mistake, determine whether perform re-transmission according to described feedback information.
Separately implement example according to one and a kind of device in order to transfer of data is provided, comprise a transmission unit in order to transfer data to another device; And a processing unit, when a feedback information indicates the error of transmission of described device to occur, described processing unit judges whether to perform re-transmission according to the described feedback information received from another device described.
Separately implement according to one the data transmission method that example provides a kind of device, comprise and receive data from another device; Transmit a feedback information to another device described, the described data received from another device described in order to response; And when an error of transmission of described feedback data instruction another device described occurs and another device described determines not perform re-transmission, do not need a data retransmission of another device described to decode described data.
Separately implement example according to one and a kind of device in order to transfer of data is provided, comprise a detecting unit in order to receive data from another device; And a feedback information unit, transmit the described data that a feedback information receives from another device described to another device described in order to response, wherein when an error of transmission of described feedback information instruction another device described occurs, and described another device is when determining not perform re-transmission, described detecting unit is decoded in without a data retransmission situation of another device described described data.
Separately implement example according to one and a kind of data transmission system is provided, comprise a first device; And one second device, feed back to described first device to respond the data received from described first device in order to transmit one; Wherein when an error of transmission of described feedback data instruction another device described occurs, described first device determines whether perform re-transmission according to described feedback information.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
Accompanying drawing explanation
Figure 1A illustrates, according to this enforcement example, one data transmission system is described.
Figure 1B illustrates the data transmission method that a kind of data transmission device is described according to this enforcement example.
Fig. 1 C illustrates the data transmission method that a kind of polymerizer is described according to this enforcement example.
Fig. 2 illustrates, according to this enforcement example, a kind of data transmission mechanism is described.
Fig. 3 illustrates AG and implements example in different time interval received data.
Fig. 4 illustrates data A and B and collides at time t.
Fig. 5 illustrates the resource block enforcement example that GM uses.
Fig. 6 illustrates the enforcement example of resource block group allocation.
Fig. 7 A illustrates the enforcement example that AG receives Data distribution8.
Fig. 7 B illustrates the enforcement example of data retransmission received data distribution.
Fig. 8 illustrates, according to this enforcement example, a kind of GM calcspar is described.
Fig. 9 illustrates, according to this enforcement example, a kind of AG calcspar is described.
[symbol description]
S21, S22, S23, S21 ', S22 ', S23 ': step
802: transmission unit
804: processing unit
806: probability calculator
808: transmission state adjustment unit
810: selected cell
812: transmission state unit
FB: feedback information
902: detecting unit
904: feedback information unit
RD: data
906: buffer
908: recognition unit
910: common detecting unit
GM, AG, CN: group member
P1: transfer of data
P1: testing result
P1: data re-transmission
P2: aggregated data transmits
Embodiment
Below, with reference to adjoint diagram, describe in detail according to embodiments of the invention, thus make those skilled in the art be easy to understand.Described invention intention can adopt the execution mode of multiple change, when can not only be defined in these embodiments.The present invention omits the description having known part (well-known part), and identical reference number represents identical element in the present invention.
According to embodiments of the invention, Figure 1A and 1B illustrates a data transmission system 100.Figure 1B illustrates a data transmission method of this data transmission system 100.System 100 comprises a Controlling vertex 102 and multiple device D1-D16.This Controlling vertex 102 can be evolution node (eNB) base station or an other forms of base station.These multiple device D1-D16 can be ustomer premises access equipment or MTC device, such as: mobile device, personal digital assistant, mobile computer, personal computer, server, relay station, transducer, or other can the device of performing data transmission.This means, the quantity of Controlling vertex and device is not limited to shown in Figure 1A, can look increase in demand or minimizing.
In the step s 21, a device transfers data to another device.In step S22, this device receives a feedback information from another device described.In step S23, when the transmission of feedback information indicating device makes a mistake, this device determines whether perform re-transmission according to described feedback information.
In particular, within system 100, a device may transmit data to other devices.When receiving a feedback information from other devices, when it indicates this device generation error of transmission, whether this device can determine to perform according to this feedback information to retransmit action, if this device determines not perform re-transmission, other devices are decoded under without the data retransmission situation of this device received information.
According to the enforcement example of Fig. 1, this Controlling vertex 102 may be broadcasted group and be formed information (groupformation information) to this little multiple device D1-D16 to form multiple group G1-G4.In each group of G1-G4, at least one device is chosen as a polymerizer (aggregator (AG)), and other devices in identical group are called as group member (group members).Be chosen as the device of polymerizer in order to transmit the aggregated data (aggregated data) of affiliated group to Controlling vertex 102.As shown in Figure 1, device D4, D8, D12 and D16 are respectively the polymerizer in group G1, G2, G3 and G4, and D1-D3 is the group member of group G1, and device D5-D7 is the group member of group G2, device D9-D11 is the group member of group G3, and device D13-D15 is the group member of group G4.The quantity of group and device is not restricted to shown in Figure 1A, and it is purposes, not its restriction as an example only.
With reference to figure 1C, in step S21 ', when a device is as a polymerizer, this device will receive the data from another device (e.g., a group member).Afterwards, in step S22 ', this device transmits one and feeds back to this another device, in order to the data that response receives from another device described, next, in step S23 ', when feedback information instruction another device generation error of transmission described, this device is decoded under without the data retransmission situation of another device described received data.
Implement in example at some, once form group G1-G4, Controlling vertex 102 can broadcast group's configuration info, the resource distribution of this Information Availability transfer of data between group member and polymerizer.Afterwards, in same group, these group members communicate with Controlling vertex 102 via polymerization.Due to this group mechanisms, the data of group member can pass to Controlling vertex 102 by polymerizer, therefore, can reduce the situation that data are jammed.
In an example, implement competition non-orthogonal data transmissions to polymerizer.When data collision occurs and decode unsuccessfully (namely data transmission fault to occur), group member can specify data retransmission via probabilistic data retransmission or directly by polymerizer.For example, when the data collision transmitted by group member D1-D3, group member D1-D3 can determine whether perform the data that retransfer according to respective re-transmission probability or according to the instruction of polymerizer D4.By this kind of mode, group member performs the number of times retransmitted can be reduced, and also can reduce because group member performs the re-transmission data collision that causes.
According to this enforcement example, Fig. 2 is the data transmission mechanism of a system 100.As shown in Figure 2, uplink has two stage P1 and P2.First stage P1 is group member (group member) (GM)) transmit to polymerizer (aggregator (AG)).Group member at the uploading resource transmission of data of Stochastic choice to polymerizer, post polymerizer broadcasting decoder result to group member.Afterwards, according to the feedback information from polymerizer, group member selects resource to retransfer.Second stage P2 is that polymerizer transmits to Controlling vertex (controlnode (CN)), and in this transmission, polymerizer transmits aggregated data to Controlling vertex 102.In this enforcement example, resource request signal can be removed, as steering signal (preamble) transmission and dispatch request, to reduce access delay.As shown in Figure 2, before data is transmitted, group member first can't transmit resource request signal.
Fig. 3 illustrates the data that polymerizer receives at different time intervals.Block A, B, C represent the data received by group member a, b, c respectively.In an example in figure 3, data A and data B collides when time t.The data retransmission A (oblique line block) coming from group member a and the new biography transmission of data C coming from group member c collide at time t+1.Afterwards, polymerizer receives the data retransmission C of group member c when time t+2.
The data that polymerizer receives can be expressed as matrix form:
Wherein R
t, R
t+1and R
t+2corresponding time t, t+1, t+2 received data respectively, h
a, h
band h
cbeing respectively group member a, b and c at the channel factor H of time t is equivalent passageway matrix.For simplicity, noise factor is first ignored at this and is not considered.
Implement example according to this, transmission data, new transmission data and data retransmission can jointly detect by polymerizer.As long as equivalent passageway coefficient H is full rank (full rank) matrix, equation (1) namely has solution (unique solution of meaning and data A, B and C can draw).
For simultaneous equations (2) and (3),
And
Identical result can be obtained both it.If simultaneous equations (3) is considered as the result retransmitted, mean under the common framework detected, not each have the group member that transmission data collision occurs to need to perform re-transmission (in equation x=3, y=0), even and if not every crash data all needs to be retransmitted, polymerizer also can be decoded and be received data.
Figure tetra-illustrates data A and data B and collides when time t, wherein data A and data B respectively by transmit by group member a and b.In addition, the data that polymerizer receives at time t are
R
t＝h
a(t)A+h
b(t)B+N
t(4)
Wherein h
a(t) and h
bt () is respectively the channel factor of group member a and group member b, N
tfor noise item.
If polymerizer asks group member a and b to retransmit at time t+1 simultaneously, this polymerizer receiving package may contain the data R that two retransmit messages
t+1.
R
t+1＝h
a(t+1)A+h
b(t+1)B+N
t+1(5)
Afterwards, data A and B can by solving linear equation (4) and (5) and decoded (such as via MIMO detection method).
On the other hand, if if when being b re-transmission when only having group member a or group member b to retransmit, then receive data R'
t+1for
R′
t+1＝h
b(t+1)B+N
t+1(6)
Use accepts data R'
t+1and together with R
t, data A and B also can be decoded.That is, use common detection, do not need to retransmit all crash datas, polymerizer still can be decoded received data.
This mechanism retransmitted can be initiated by group member or polymerizer, if initiate by group member, group member is according to re-transmission probability P
rT, this re-transmission probability P
rTby one retransmit probability function determined, this function can use come from polymerizer feedback information for input parameter and this parameter change along with transmission state.This feedback data may comprise resource allocation information, and polymerizer is the data decode result of group member, and along with the re-transmission probability P of data decode results change
rT.Implement example according to of the present invention one, this feedback data comprises one first Parameter N
c, i(t) and one second Parameter N
f, i(t), this first Parameter N
c, it () represents the collision number of group members when time index t on resource metrics i.This second Parameter N
f, it () points out, when time index t, on resource metrics i, to transmit failed number of group members because of collision.Resource metrics i can represent a specific resources block or a resource block group.This group member can utilize first and second Parameter N
c, i(t) (t) and N
f, it () calculates the re-transmission probability P of t on resource metrics i when the time
rT, i(t).For example, retransmitting probability function is
This retransmits probability function (7) two kinds of characteristics.The first characteristic is for when only there being a group member failure, and this retransmits probability P
rT, i(t)=1.The second characteristic is that this retransmits probability P when failed group member number increases
rT, it the value of () can reduce.Because above-mentioned two kinds retransmit the characteristic of probability function, this collision group member suitably can adjust corresponding re-transmission probit value, the probability that the data caused during to reduce re-transmission are collided again.Retransmitting probability function (7) is only that wherein one implements mode of the present invention, the present invention is not limited thereto.
Fig. 5 illustrates the enforcement example of the resource block for being used by group member.In this example, group member a, b and c random selecting resource block transmits data.As shown in Figure 5, group member a selects resource block RB1, RB2 and RB4 to transmit data A1-A3, group member b selects resource block RB2, RB5 and RB7 to transmit data B1-B3, group member c selects resource block RB1, RB4 and RB5 to transmit data C1-C3, implement in example at this, in order to reduce the complexity of receiving terminal and be control data collision probability between group member, resource block is divided into resource block group.It is the enforcement example of a resource block group allocation that Fig. 6 illustrates.As shown in Figure 6, resource block RB is divided into several resource block group RBG1-RBGN, resource block group RBG1-RBGN is further divided into two set: be the first resource block cluster set 602 newly transmitted, and the Secondary resource block cluster set 604 of new transmission of attaching most importance to.Secondary resource block cluster set 604 is classified further according to different retransmission type.As shown in Figure 6, Secondary resource block cluster set 604 is categorized as the resource block cluster set 606 of first time re-transmission and the resource block cluster set 608 for second time re-transmission further.
Group member can from the resource block cluster set corresponding to different transmission state, Stochastic choice group of resources block.For example, group member can select a resource block group to perform new transmission from first resource block cluster set 602.If group member needs data retransmission, group member 604 selection one resource block groups can perform re-transmission from Secondary resource block cluster set.
For each transfer of data of group member, the resource block group number of each resource block cluster set of dynamic conditioning.The resource block group number retransmitted at time index t+1 qth determined by the re-transmission probability of the group of resources block sets retransmitted at time index t q-1th.For example, the resource block group number retransmitted at time index t+1 qth can be expressed as
Wherein R
t, q-1for the set of the q-1th resource block group index when time index t q-1th retransmits
The whole resource block group number retransmitted are
Wherein N
rT, maxfor maximum retransmission value
Illustrate with reference to figure 7A and 7B, Fig. 7 A the example that a polymerizer receives Data distribution8 in the lump, Fig. 7 B illustrates the example accepting Data distribution8 containing data retransmission.In Fig. 7 A and 7B example, have 7 group members, its sign is respectively a, b, c, d, e, f, and g.The data coming from each group member indicate A respectively, B, C, D, E, F, and G.In initial transmission state, all available resource block group RBG1-RBGN can be used for new transmission, data are transmitted in Fig. 7 A example in group member Stochastic choice resource block group, data E, B and D collide in resource block group RBG2, data F and C collides in resource block group RBG3, if only there is data E successfully to decode, polymerizer feeds back the first Parameter N
c, iand second Parameter N
f, iabout the decoded result of each resource block group, and feedback is by the new Resourse Distribute of current decoder result gained.Be 3 according to equation (9) the resource block group number that can obtain all for retransmitting.Failure group member performs re-transmission according to derived re-transmission probability.As shown in Figure 7 B, when time t+1, group member e and group member g performs new data and retransmits, group member b, group member c and group member d perform first time data re-transmission, if data B and data C still can not successfully decoded, group member b and group member c will upgrade this re-transmission probability according to decoded result, and the resource block group number that second time retransmits is 1.In addition, the group member not yet performing re-transmission can use the re-transmission probability previously derived to determine whether retransmitting.
It is the calcspar of a group member according to this enforcement example that Fig. 8 illustrates, and this group member comprises transmission unit 802 and a processing unit 804, and this transmission unit 802 can transmit data to polymerizer.This processing unit 804 can determine whether perform re-transmission according to this feedback information FB received from polymerizer.When this feedback information FB points out group member generation error of transmission and cause this group member cannot perform re-transmission, polymerizer can not need the data retransmission of group member namely to decode these data.
In Fig. 8 example, this processing unit 802 also comprises a probability calculator 806, one transmission state adjustment unit 808, selected cell 810 and a transmission state unit 812, when this feedback information FB points out group member generation error of transmission, probability calculator 806 can calculate a re-transmission probability according to feedback information FB and determine whether that retransmitting probability according to calculating performs re-transmission.Transmission state adjustment unit 808 can adjust the transmission state of group member according to feedback information FB.This transmission state comprises new first state of transmission and the second state of re-transmission.When group of cells running is in the first state, selected cell 810 can select the transmission of a resource block group for newly transmitting from first resource block cluster set; When group of cells running is in the second state, selected cell 810 can select a resource block group for transmitting data retransmission from Secondary resource block cluster set.The exportable data about transmission state of transmission state unit 812.For example, transmission state unit 812 exports first data about the first state or the second data about the second state to transmission unit 802.For example, group member can read previous transmission data from the re-transmission buffer (buffer) transmission state unit 812, if and under group member operating in as retransmitting the second state, exporting this and previous transferring data to transmission unit 802.
Implement example according to of the present invention one, Fig. 9 illustrates the calcspar of polymerizer, and polymerizer comprises detecting unit 902 and a feedback information unit 904, and detecting unit 902 can receive the data RD of group member.In order to response data RD, feedback data unit 904 transmits this feedback data FB to group member.When this feedback information FB points out group member generation error of transmission, group member may be caused to perform re-transmission.If there is an error of transmission but do not perform re-transmission in group member, detecting unit 902 when not needing group member data retransmission, still decodable code data RD.
In the enforcement example of Fig. 9, detecting unit 902 also comprises buffer 906, recognition unit 908 and a common detecting unit 910.Buffer 906 is configured in order to store the data received from place group.Recognition unit 908 is configured to find out in each resource block group the group member carrying out transfer of data.As above describe, resource block group can be divided into the first resource block cluster set for newly transmitting, and the Secondary resource block cluster set for retransmitting.For first resource block cluster set, common detecting unit 910 can detect for the current signal received from group.For this Secondary resource block cluster set, common detecting unit 910 for the current signal received from group, can do common detection with the previous signal received from group.Afterwards, common detecting unit 910 output detections result is to feedback information unit 904.Feedback information unit 904 upgrades the Resourse Distribute of resource block group according to the testing result obtained from common detecting unit 910 and produces feedback information FB according to testing result.
For example, polymerizer can perform the recognizer of a group member, utilizes reference signal to have to find out in each resource block group the group member carrying out transfer of data.For the Received signal strength of the resource block cluster set (set) that newly transmits, polymerizer only performs and detects existing Received signal strength.On the other hand, this resource block cluster set is detected along with previous received signal jointly in order to the Received signal strength retransmitted.Finally, polymerizer meeting broadcasting decoder result and resource allocation information are to group member.
According to aforesaid enforcement example, when data collision occurs and decode unsuccessfully (as data transmission fault), be not that each crash device can perform re-transmission.Detect by use is common, polymerizer need from crash device data retransmission yet decodable code Received signal strength.Therefore, unnecessary re-transmission can be avoided, therefore can reduce and retransmit and the obstruction that causes.
The foregoing is only according to enforcement example of the present invention, when not limiting scope of the invention process according to this.Namely the equalization generally done according to claims of the present invention changes and modifies, and all still should belong to the scope that patent of the present invention contains.
Claims (43)
1. a data transmission method for device, comprises:
Transmission data give another device;
From another device receiving feedback information described; And
When the error of transmission of described device occurs in described feedback information instruction, determine whether perform re-transmission according to described feedback information.
2. data transmission method as claimed in claim 1, wherein before described transfer of data, does not transmit resource request signal.
3. data transmission method as claimed in claim 1, also comprises:
Receive group from Controlling vertex and form information to the group comprising another device described; And
Communicate with described Controlling vertex via another device described.
4. data transmission method as claimed in claim 1, wherein determines that whether performing re-transmission also comprises:
Calculate according to described feedback information and retransmit probability; And
Determine whether perform re-transmission according to described re-transmission probability.
5. data transmission method as claimed in claim 4, wherein said device and another device described are in group, described group comprises multiple group member, and described feedback information comprises the data decode result of group member, and along with the described re-transmission probability of described data decode results change.
6. data transmission method as claimed in claim 4, wherein said device and another device described are in group, and described group comprises multiple group member, and described device is one of them of group member, and described feedback information comprises:
First parameter, described first parameter indicates the number of the group member that collides in described group in resource block group; And
Second parameter, there is the number of failed group member in described second parameter instruction in described resource block group in described group.
7. data transmission method as claimed in claim 6, also comprises:
Retransmit probability according to first and second calculation of parameter described, wherein, when the number of group members that collides increases, retransmit probit value and reduce.
8. data transmission method as claimed in claim 1, wherein multiple resource block is assigned to described device with performing data transmission, described resource block is grouped into multiple resource block group, described resource block group is divided into the first resource block cluster set newly transmitted, and the Secondary resource block cluster set in order to retransmit.
9. data transmission method as claimed in claim 8, also comprises:
Adjust the transmission state of described device according to described feedback information, wherein said transmission state comprises the first state and the second state;
When operating in described first state, from described first resource block cluster set, select a resource block group to perform new transmission; And
When operating in described second state, from described Secondary resource block cluster set, select a resource block group to perform re-transmission.
10. data transmission method as claimed in claim 8, wherein for the transfer of data each time of described device, the described resource block group number of described first resource block cluster set and the described resource block group number of described Secondary resource block cluster set are dynamic conditioning.
11. data transmission methods as claimed in claim 1, wherein when described feedback information indicates the data transmission fault of described device to occur, described device is configured to the re-transmission not performing another device described.
12. data transmission methods as claimed in claim 1, wherein when described feedback information indicates the data transmission fault of described device to occur and described device determines not perform re-transmission, another device described does not need the data retransmission of described device to decode described data.
13. 1 kinds, in order to the device of transfer of data, comprise:
Transmission unit is in order to transfer data to another device; And
Processing unit, when feedback information indicates the error of transmission of described device to occur, described processing unit performs to retransmit according to the described feedback information received from another device described and determines, judges whether to perform re-transmission.
14. data transmission devices as claimed in claim 13, wherein before described transfer of data, described device does not transmit resource request signal.
15. data transmission devices as claimed in claim 13, wherein said processing unit also comprises the group received from Controlling vertex is sent to the group comprising another device described and forms information, causes and communicates with described Controlling vertex via another device described.
16. data transmission devices as claimed in claim 13, wherein said processing unit also comprises:
Probability calculator, calculates according to described feedback information and retransmits probability, and determine whether perform re-transmission according to described re-transmission probability.
17. data transmission devices as claimed in claim 16, wherein said device and another device described are in group, described group comprises multiple group member, described feedback information comprises the data decode result for group member, and along with the described re-transmission probability of described data decode results change.
18. data transmission devices as claimed in claim 16, wherein said device and another device described are in group, and described group comprises multiple group member, described device be group member one of them, described feedback information comprises:
First parameter, the number of described first parameter instruction collision group member of group described in resource block group; And
Second parameter, the number of described second parameter instruction failed group member of group described in described resource block group.
19. data transmission devices as claimed in claim 18, wherein said probability calculator retransmits probability according to first and second calculation of parameter described, when the number of group members collided increases, retransmits probit value and reduces.
20. data transmission devices as claimed in claim 13, wherein said multiple resource block distributes to described device with performing data transmission, described resource block is grouped into multiple resource block group, described resource block group is also divided into first resource block cluster set for new transmission, and Secondary resource block cluster set is used for retransmitting.
21. data transmission devices as claimed in claim 20, wherein said processing unit also comprises:
Transmission state adjustment unit, in order to adjust the transmission state of described device according to described feedback information, wherein said transmission state comprises the first state and the second state;
Selected cell, when operating in described first state, described selected cell selects resource block group to perform new transmission from described first resource block cluster set; When operating in described second state, described selected cell selects resource block group to perform re-transmission from described Secondary resource block cluster set; And
Transmission state unit, in order to export data according to described transmission state.
22. data transmission devices as claimed in claim 21, wherein for the transfer of data each time of described device, the described resource block group number of described first resource block cluster set and the described resource block group number of described Secondary resource block cluster set are dynamic conditioning.
23. data transmission devices as claimed in claim 13, wherein when described feedback information indicates the data transmission fault of described device to occur, another device described sets described device and does not perform re-transmission.
24. data transmission devices as claimed in claim 13, wherein when described feedback information indicates the data transmission fault of described device to occur and described device determines not perform re-transmission, another device described does not need the data retransmission of described device to decode described data.
The data transmission method of 25. 1 kinds of devices, comprises:
Data are received from another device;
Transmit feedback information to another device described, the described data received from another device described in order to response; And
When the error of transmission of described feedback information instruction another device described occurs and another device described determines not perform re-transmission, the data retransmission of described device is not needed to decode described data.
26. data transmission methods as claimed in claim 25, also comprise:
The group received from Controlling vertex is sent to the group comprising another device described forms information, causes described device and another device described in group; And
Transmission gives described Controlling vertex about the aggregated data of described group.
27. data transmission methods as claimed in claim 25, wherein multiple resource block distributes to another device described with performing data transmission, described resource block is grouped into multiple resource block group, described resource block group is also divided into first resource block cluster set for new transmission, and Secondary resource block cluster set is used for retransmitting.
28. data transmission methods as claimed in claim 27, wherein said device and another device are in same group, and described group comprises multiple group member, and another device described is one of described group member, and described feedback information comprises:
First parameter, the number of its instruction collision group member of group described in resource block group; And
Second parameter, the number of its instruction failed group member of group described in one of described resource block group.
29. data transmission methods as claimed in claim 28, also comprise:
The group member having in described group and carry out transfer of data is found out in each resource block group;
For first resource block cluster set, detect the signal received from described group at present; And
For Secondary resource block cluster set, the one or more signals jointly detecting the described signal received from described group at present or previously received from described group.
30. data transmission methods as claimed in claim 29, also comprise:
The Resourse Distribute of described resource block group is upgraded according to testing result or common testing result; And
Described feedback information is produced according to described testing result.
31. data transmission methods as claimed in claim 27, also comprise:
For each transfer of data of another device described, the described resource block group number of first resource block cluster set described in dynamic conditioning and the described resource block group number of described Secondary resource block cluster set.
32. data transmission methods as claimed in claim 25, also comprise:
When described feedback information indicates described data transmission fault to occur, setting another device described does not perform re-transmission.
33. 1 kinds, in order to the device of transfer of data, comprise:
Detecting unit is in order to receive data from another device; And
Feedback information unit, transmit the described data that feedback information receives from another device described to another device described in order to response, wherein when the error of transmission of described feedback information instruction another device described occurs, and described another device is when determining not perform re-transmission, described detecting unit is decoded in without the data retransmission situation of another device described described data.
34. data transmission devices as claimed in claim 33, wherein said detecting unit forms information in order to the group received from Controlling vertex is sent to the group comprising another device described.
35. data transmission devices as claimed in claim 33, wherein multiple resource block distributes to another device described with performing data transmission, described resource block is grouped into multiple resource block group, described resource block group is also divided into first resource block cluster set for new transmission, and Secondary resource block cluster set is used for retransmitting.
36. data transmission devices as claimed in claim 35, wherein said device and another device described are in a group, described group comprises multiple group member, another device described is one of group member, described feedback information comprises: the first parameter, the number of its instruction group member collided of group described in one of described resource block group; And
Second parameter, the number of its instruction failed group member of group described in one of described resource block group.
37. data transmission devices as claimed in claim 36, wherein said detecting unit comprises:
Buffer, in order to store the signal previously received from described group; And
Recognition unit, has in order to what find out group described in each resource block group the group member carrying out transfer of data; And
Common detecting unit for first resource block cluster set detects the signal received at present from described group, and is that Secondary resource block cluster set detects the described signal received at present from described group and the described signal previously received from described group jointly.
38. data transmission devices as claimed in claim 37, wherein upgrade the Resourse Distribute of resource block group according to the testing result obtained from common detecting unit and produce feedback information FB according to described testing result.
39. data transmission devices as claimed in claim 35, wherein for each transfer of data of described device, the described resource block group number of first resource block cluster set described in described feedback information unit dynamic conditioning and the described resource block group number of described Secondary resource block cluster set.
40. data transmission devices as claimed in claim 33, wherein when described feedback information indicates described data transmission fault to occur, described device setting another device described does not perform re-transmission.
41. 1 kinds of data transmission systems, comprising:
First device; And
Second device, feeds back to described first device to respond the data received from described first device in order to transmit;
Wherein when the error of transmission of described feedback information instruction another device described occurs, described first device determines whether perform re-transmission according to described feedback information.
42. data transmission systems as claimed in claim 41, before wherein said first device transmits described data, do not transmit resource request signal to described second device.
43. data transmission systems as claimed in claim 41, also comprise:
Controlling vertex, forms information to first and second device described in order to broadcast group, to form the group of first and second device described.
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| US61/928,426 | 2014-01-17 | ||
| US14/543,196 US9729286B2 (en) | 2014-01-17 | 2014-11-17 | Data transmission and feedback methods, devices and system |
| US14/543,196 | 2014-11-17 |
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| CN104868979A true CN104868979A (en) | 2015-08-26 |
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| US (1) | US9729286B2 (en) |
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Also Published As
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| US9729286B2 (en) | 2017-08-08 |
| TWI603639B (en) | 2017-10-21 |
| TW201531123A (en) | 2015-08-01 |
| US20150207592A1 (en) | 2015-07-23 |
| CN104868979B (en) | 2018-06-01 |
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